I'm 41 with a 2 year old child, and having great difficulties trying to have a 2nd (2 miscarriages so far, failed IUI attempts and about to start IVF with reduced odds). Whilst truly appreciating our good fortune in having a child at all (when many others can't), I'm having difficulties coming to terms with the fact that he may be an only child. Irrational though it may sound, I can't help but worry that he will really miss out by not having a sibling. I'm very much aware I must keep these feelings to myself and start to deal with the very real possibility that my family will not increase, but I feel troubled. Does anyone have any thoughts or advice to share please?(My partner does not wish to adopt).